Electric welding-machine.



carrying the dies as from.

rmrrnp s'rarnsrgnnr orricn.

NEIL MACNEALE, OF CICINNATI, OHIO, ASSIGNOR TO THE TOLEDO ELECTRIC .VELDER COIVIPANYl OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

f' ELECTRIC V/ELDING-IVIACHINE.

l Application ied December 3l, 1`9l3.

To all whom, it may concern :i 7

Be it known that' I,"Niin NACNEALE, a citizen of the United States, an4 a 'residentct Cincinnati, in the 4county of Hamilton and State of (')hio,'have invented a certain new and useful Electric felding-ll'lachine; and I do hereby declare the following to be a full'fqlear, vand exact description of the inventionfsuch as will enable others skilled in the art to which it appertains to make and 'use the same, reference beinghad to the `accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to electric welding machines, and particularly to the die-carrying horns of Spot-welding machines, but is not restricted'tio such use, as it may he employed in anyconnectionor which it may be adapted or appropriate.

'Itisfolund in electric welding that it is very desirable for cooling purposes to have the die-points as-near to the horns or' parts i the nature of the work acted on will permit, the points staying cooler when located close to the horns than when extended a considerable distance there- It is also found desirable to provide means for varying he distance between the die carrying portions of a pair of associated horns, so that when .tiat work is being welded the horns may be placed relatively close tov gether to shorten the length of vprojection of the dies therefrom, and when boxes or work of a similar nature are being welded the distance between the horns may be varied to arcommodate the work.

The object of my invention is to provide a pair of horns of the character described, which are relatively adjustable to vary, the space therebetween to suit the nature of the work being,r acted on, whereby the die-points may have minimum lengths of projection from the horns as the work acted on may require, and the maximum cooling efiieiency of the dies secured for ditferent types ot work.

The invention is fully described in the following speciiication, and while, in its broader aspect, it is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings, in which,-

Figure l is a side elevationof a portion of an electric welding machine equipped with my invention, with the horns in their closest Specication of Letters Patent.

Anate the upper and lower horn,

Patented A pr. 1 4, 1.914.

Serial No. 809,716.

position of relative adjustment and with the. parts in sect-ion. Figs. 2 and 3 are similar views of the horns in different positions of adjustment, and1 `ig. 4 is an elevation of one of the horn clamping blocks. ,i

Referring to the drawings, Nani 2 desiglrespecoi' an electric ,welding-:machina and 3, 3 the clamping blocks by/,iwhich ythey are respectively held for rotitry adjustment. Each of these blocks is pifovided with an opening 4 therein for receiving the inner end of the respective hof/fn l, 2 for rotary adjustment therein, and is split at one side, as at 5, to facilitate a clamping` of the horn by the block upon a drawing together of the split portions. The-clamping action of each block is' accomplished by screws 6, which connect the split parts. These screws also assist in seeuringthebloeks 3 to their carrying,r parts. The lowerI block 3 is shown, in the present instance, as bei ing carried by a fixed part 7 of the m chine.,l while the upper block is carried by a lever 8. which is fulcrul'ned at 9 and operated in any suitable or convenient manner, as is well understood in the art, thus enabling the horns to have relative jaw-like movements.

tively In carrying out the features of my inven' tion, I preferably provide each horn 1, Z

'with a shank or trunnion portion 10 for fitting` into the associated block 3, and with an outer end portion 1l, which is transversely offset from, or of crank-dorm, relative to the shank part, as shown. A welding-die 12 is removably carried by the part 11 of eaclrhorn, and projects transversely thereof in the plane of lateral projection or ofsetting of the part 11 from they shank part 10 of the horn` and is capable of having its welding point projectedV in either of opposite directions from the horn.

\Vhen flat work is Vbeing welded the horns are turned so that the ofset parts 10 thereof are projected toward cach other and the minimum space provided therebetween. Then the horns are in this position each die point projects only a short distance from the horn, for instance, of'an inch, so that in such case the combined length of projection of the two dies from the horns is only le inches. lf boxes o'r similar work are to be welded the offset portions of either or both horns can be placed in its outer posiis not limited 4to'any specic construction,

form or arrangement of .the lparts, except in so far as such limitations are specified in Having thus described' my inventionpvhat I claim as new, and desire to secre by-Letters Patent, is,- A

1. In an electric Welding` machine, aA horn havingr va` laterally-olfsct die-carrying portion and being adjustable about a longitudinal axis.

'2. In an electric welding machine, a horn having a laterally-'offset die-carrying portion and adjustable to place the offset portion at different positions relative to its longitudinal axis.

3. In an electric welding machine, a horn having a laterally-offset' diecarrying,r portion, and means carrying the horn for rotatableadjustment about its longitudinali axes.

4. In an electric weldiirgr machine,- a hori- 'zontally projecting die-carrying horn angularly adjustable to vary the vertical posilon of its die-cm'rjimgr portion.

In an electric-welding machine, a pair of lic-carrying parts, one of which is rot latahly adjustable to vary the alininfr space between the die-carrying parts thereof.

ing portion and beinevr angularly adjustable to vvarythe "ertical position of the diecarrying;r portion thereof with respect to the other member.-

7. In an electric welding,r machine, a pair of associated horns each being angnlarly adjustable and having` a laterally-offsetdiecarrying portion.

8. In an electric welding machine, a pair of horns each having'a laterally-oti`set diecA-irrying portion, and separate means carrying said horns for relative adjustment about their respective axes.

9. In au electric welding machine, a pair of horns each mounted forturning adjustment relative to the other and having,r a diecarrying'v portion. which is laterally offset relative to its turningr axes, and a weldingdie relno\fably carried by each offset portion and extendingr in the plane of lateral projection thereof.

10. In an electric welding machine, a fixed and a p ivotally movable clamp, a horn carried for rotary adjustment by each clamp and having a die-carrying portion which is laterally-offset from its axis of adjustment, and a. die removably carried by the offset portion of cach horn and projecting therel from in the plane of lateral projection of lsuch portion.

In testimony whereof, I have hereuntosigned my name to this specification in the presence of two subscribing witnesses.

` NEIL MACNEALE.

'tncsses:

Pham. DUNKMAN, Roman CLARK PinnCF.. 

